<template>
<div>
       <!-- 面包屑导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>

      <!-- 卡片视图区域 -->
      <!-- 2.为ECharts准备一个具备大小（宽高）的Dom -->
        <div id="main" style="width: 800px;height:400px;"></div>


</div>
    
</template>
<script>
import echarts from 'echarts'
import _ from 'lodash'
export default {

    data(){
        return{
              // 需要合并的数据
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    

        }
    },
    created(){},
    // 此时页面元素已经渲染完毕
   async mounted(){
        // 3.基于准备好的dom，初始化echarts实例
         var myChart = echarts.init(document.getElementById('main'));
         const { data: res } = await this.$http.get('reports/type/1')
            if (res.meta.status !== 200) {
            return this.$message.error('获取折线图数据失败！')
            }
    
         // 4.指定图表的配置项和数据
        const result = _.merge(res.data, this.options)

      
        // 5. 使用刚指定的配置项和数据显示图表。
        myChart.setOption(res.data);

    },
    methods:{

    }
}
</script>
<style lang="less" scoped>

</style>